Li-Ion battery measurement system

1#include <LiquidCrystal.h>
2#include <Wire.h>
3#include <LiquidCrystal_I2C.h>
4LiquidCrystal_I2C  lcd(0x27, 16, 2);
5#include <MillisTimer.h>
6
7#include <SoftwareSerial.h>
8
9SoftwareSerial  mySerial(8, 7); // RX, TX
10
11#define HallS A2; //pin Hallovog senzora 
12#define  LM35 A1; // pin  temperaturnog senzora
13#define cellPin A0; //pin  baterije
14
15
16
17float  temperatura;  //varijabla u koju pohranjujemo temperaturu
18float vout;  //trenutna  varijabla za očitanje senzora temperature
19float V;    // varijabla napona kojega  očitava Hallov senzor s A2 pina
20float ImA; // Varijabla struje u miliamperima
21float  IA;    // varijabla struje u amperima
22float v;      // varijabla napona baterije
23float  mv = 0;    //napon baterije u milivoltima
24const float mvc = 5; // napon rada  mikrokontrolera
25float uzorci = 0;
26float Capacity = 0.0;  // varijabla kapaciteta
27unsigned  long previousMillis = 0; // prethodno vrijeme u ms
28unsigned long millisPassed  = 0;  // trenutačno vrijeme u ms
29
30
31void setup()
32{
33  pinMode(A1, INPUT);  // Configuring pin A1 as input
34  Serial.begin(9600);
35  lcd.init();
36  lcd.backlight();
37
38  mySerial.begin(9600);
39
40  delay(1000);
41
42}
43
44
45void loop()
46
47{
48
49  //MJERENJE TEMPERATURE
50  vout = analogRead(A1);
51  vout = (vout * 500) /  1023;
52
53  temperatura = vout; // temperatura u stupnjevima celzijusevim
54
55
56  Serial.print("temp=");
57  Serial.print(temperatura);
58  Serial.print("  °C\
59");
60
61  mySerial.print("temp=");
62  mySerial.print(temperatura);
63  mySerial.println(" °C\
64");
65
66
67  delay(1000); //Delay of 1 second for  ease of viewing in serial monitor
68
69
70
71
72  //MJERENJE STRUJE
73
74
75  V = analogRead(A2); //očitavanje napona s pina A2
76  delay(10);
77
78  V =  (V / 1023) * 5;                                              // prebacivanje digitalne  ADC vrijednosti u napone
79  V = V - 2.500;                                                   //  Subtract the zero current value Nominally 2.500V
80  V = V * 1000;                                                    //  pretvaranje napona iz volta u milivolte
81  ImA = abs((V / 400) * 1000); // prebacaivanje  napona sa senzora u struju
82  IA = ImA / 1000;
83  Serial.print("ImA = ");  Serial.print(ImA); Serial.println(" mA\
84");
85  if (IA < 0.01) {
86    lcd.setCursor(7,  0);  //ispis struje
87    lcd.print("noCurrent");
88
89  }
90
91  mySerial.print("ImA=");
92  mySerial.print(ImA);
93  mySerial.println("mA\
94");
95
96  delay(1000);
97
98  //MJERENJE NAPONA
99
100
101  uzorci = analogRead(A0);
102  mv = uzorci * mvc;
103  v = mv / 1000;
104  Serial.print("V="); Serial.print(String(v)); Serial.print("V\
105");
106
107  mySerial.print("V=");
108  mySerial.print(v);
109  mySerial.println("V\
110");
111
112
113  delay(100);
114
115  //MJERENJE KAPACITETA
116
117
118  if ( mv > 4400 ) {
119
120    //Serial.println( "Warning High-V! ");
121
122    lcd.setCursor(0, 1);
123    lcd.print("HIGH-V");
124
125
126
127    //delay(1000);
128  }
129
130  else  if (mv < 3000) {
131
132    Serial.println( "Warning Low-V! ");
133
134    lcd.setCursor(0,  1);
135    lcd.print("LOW-V");
136
137    delay(1000);
138  }
139  else if (mv  > 3000 && mv < 4300  ) { // provjera je li napon baterije u sigurnim granicama
140
141    millisPassed = millis() - previousMillis;
142
143    Capacity = Capacity + ImA  * (millisPassed / 3600000.0); // 1 Hour = 3600000ms
144    previousMillis = millis();
145    Serial.print("C=");
146    Serial.print(Capacity);
147    Serial.print("mAh\
148");
149
150    mySerial.print("C= ");
151    mySerial.print(Capacity);
152    mySerial.println("  mAh\
153");
154
155    lcd.begin(16, 2);                       //ispis kapaciteta  na LCD
156    lcd.setCursor(7, 1);
157    lcd.print(Capacity, 1);
158    lcd.print("mAh");
159
160
161    lcd.setCursor(0, 1);   //ispis napona
162    lcd.print(v, 1);
163    lcd.print("V");
164
165    lcd.setCursor(7, 0);  //ispis struje
166    lcd.print(ImA, 0);
167    lcd.print("mA");
168
169
170    lcd.setCursor(0, 0);   //ispis temperature
171    lcd.print(temperatura, 0);
172    lcd.print("*C");
173
174
175
176
177
178  }
179
180
181  delay(1000);
182
183

1#include <LiquidCrystal.h>
2#include <Wire.h>
3#include <LiquidCrystal_I2C.h>
4LiquidCrystal_I2C
5  lcd(0x27, 16, 2);
6#include <MillisTimer.h>
7
8#include <SoftwareSerial.h>
9
10SoftwareSerial
11  mySerial(8, 7); // RX, TX
12
13#define HallS A2; //pin Hallovog senzora 
14#define
15  LM35 A1; // pin  temperaturnog senzora
16#define cellPin A0; //pin  baterije
17
18
19
20float
21  temperatura;  //varijabla u koju pohranjujemo temperaturu
22float vout;  //trenutna
23  varijabla za očitanje senzora temperature
24float V;    // varijabla napona kojega
25  očitava Hallov senzor s A2 pina
26float ImA; // Varijabla struje u miliamperima
27float
28  IA;    // varijabla struje u amperima
29float v;      // varijabla napona baterije
30float
31  mv = 0;    //napon baterije u milivoltima
32const float mvc = 5; // napon rada
33  mikrokontrolera
34float uzorci = 0;
35float Capacity = 0.0;  // varijabla kapaciteta
36unsigned
37  long previousMillis = 0; // prethodno vrijeme u ms
38unsigned long millisPassed
39  = 0;  // trenutačno vrijeme u ms
40
41
42void setup()
43{
44  pinMode(A1, INPUT);
45  // Configuring pin A1 as input
46  Serial.begin(9600);
47  lcd.init();
48  lcd.backlight();
49
50
51  mySerial.begin(9600);
52
53  delay(1000);
54
55}
56
57
58void loop()
59
60{
61
62
63  //MJERENJE TEMPERATURE
64  vout = analogRead(A1);
65  vout = (vout * 500) /
66  1023;
67
68  temperatura = vout; // temperatura u stupnjevima celzijusevim
69
70
71
72  Serial.print("temp=");
73  Serial.print(temperatura);
74  Serial.print("
75  °C\
76");
77
78  mySerial.print("temp=");
79  mySerial.print(temperatura);
80
81  mySerial.println(" °C\
82");
83
84
85  delay(1000); //Delay of 1 second for
86  ease of viewing in serial monitor
87
88
89
90
91  //MJERENJE STRUJE
92
93
94
95  V = analogRead(A2); //očitavanje napona s pina A2
96  delay(10);
97
98  V =
99  (V / 1023) * 5;                                              // prebacivanje digitalne
100  ADC vrijednosti u napone
101  V = V - 2.500;                                                   //
102  Subtract the zero current value Nominally 2.500V
103  V = V * 1000;                                                    //
104  pretvaranje napona iz volta u milivolte
105  ImA = abs((V / 400) * 1000); // prebacaivanje
106  napona sa senzora u struju
107  IA = ImA / 1000;
108  Serial.print("ImA = ");
109  Serial.print(ImA); Serial.println(" mA\
110");
111  if (IA < 0.01) {
112    lcd.setCursor(7,
113  0);  //ispis struje
114    lcd.print("noCurrent");
115
116  }
117
118  mySerial.print("ImA=");
119
120  mySerial.print(ImA);
121  mySerial.println("mA\
122");
123
124  delay(1000);
125
126
127  //MJERENJE NAPONA
128
129
130  uzorci = analogRead(A0);
131  mv = uzorci * mvc;
132
133  v = mv / 1000;
134  Serial.print("V="); Serial.print(String(v)); Serial.print("V\
135");
136
137
138  mySerial.print("V=");
139  mySerial.print(v);
140  mySerial.println("V\
141");
142
143
144
145  delay(100);
146
147  //MJERENJE KAPACITETA
148
149
150  if ( mv > 4400 ) {
151
152
153    //Serial.println( "Warning High-V! ");
154
155    lcd.setCursor(0, 1);
156
157    lcd.print("HIGH-V");
158
159
160
161    //delay(1000);
162  }
163
164  else
165  if (mv < 3000) {
166
167    Serial.println( "Warning Low-V! ");
168
169    lcd.setCursor(0,
170  1);
171    lcd.print("LOW-V");
172
173    delay(1000);
174  }
175  else if (mv
176  > 3000 && mv < 4300  ) { // provjera je li napon baterije u sigurnim granicama
177
178
179    millisPassed = millis() - previousMillis;
180
181    Capacity = Capacity + ImA
182  * (millisPassed / 3600000.0); // 1 Hour = 3600000ms
183    previousMillis = millis();
184
185    Serial.print("C=");
186    Serial.print(Capacity);
187    Serial.print("mAh\
188");
189
190
191    mySerial.print("C= ");
192    mySerial.print(Capacity);
193    mySerial.println("
194  mAh\
195");
196
197    lcd.begin(16, 2);                       //ispis kapaciteta
198  na LCD
199    lcd.setCursor(7, 1);
200    lcd.print(Capacity, 1);
201    lcd.print("mAh");
202
203
204
205    lcd.setCursor(0, 1);   //ispis napona
206    lcd.print(v, 1);
207    lcd.print("V");
208
209
210    lcd.setCursor(7, 0);  //ispis struje
211    lcd.print(ImA, 0);
212    lcd.print("mA");
213
214
215
216    lcd.setCursor(0, 0);   //ispis temperature
217    lcd.print(temperatura, 0);
218
219    lcd.print("*C");
220
221
222
223
224
225  }
226
227
228  delay(1000);
229
230